Originally Posted by svttour
Removed front valve cover on both motors today and the intake pulley size is the same.
Pulley size has nothing to do with it.
OK, what Chrysler Tech was trying to tell you.....there are 2 different types of systems NGC
(new generation controller) and SBEC
(non-ngc) Both were in existence in 2003 to 2004. Those were the transition years. In 2005 all are strictly NGC. Then after NGC comes CAN BUS, but that's a totally different subject.
The pickups on the cam gear on the driver's side AND the flexplate will be slotted different
depending on what system you have. If they are not right for the controller you have then your cam/crank will go totally "ape-****". This mean your firing and injecting will be doing the same thing.
If you compare new and old cam gears and find that the slots are not the same, then you have a big problem on your hands. The spacing will be a bit diferent and so will the size of the slots. You will have to use the old flexplate and the old cam gear. Not to mention ALL of the sensors and almost all of the actuators.
Advice>>>> This is something you will have to watch for very closely in the future also when buying a reman, because it can be built with either one.